Salam,
24:31 And tell the believing females to lower their gaze and maintain their chastity; and they should not reveal their beauty except what is apparent. And they should put forth their shawls over their cleavage, and they should not reveal their beauty except to their husbands, or their fathers, or fathers of their husbands, or their sons, or the sons of their husbands, or their brothers, or the sons of their brothers, or the sons of their sisters, or their women, or those committed to by their oath, or the male servants who are without need, or the child who has not yet understood the composition of women. And they should not strike with their feet in a manner that reveals what they are keeping hidden of their beauty. And repent to God, all of you believers, that you may succeed.
Nothing about shawl over your head, but over cleavage.
This verse taken from Free-Minds online Quran.
Salam